Hi All,
The leaderboard contains only one score per user/team. Prior to 30 Jan., it was sent to replace the current score with the new score regardless of whether it was higher or lower. This meant that if you submitted a worse performing model you would move down the leaderboard. On 30 Jan, we changed the setting to keep the highest score. Since that time, a new score would go on to the leaderboard only if it was better than all previous scores. We re-ran all submissions on that day as well to ensure that all teams were treated the same and the final leaderboard had the highest score from all participants.
We're double-checking everything and will release the final results of the competition next week.That said, we encourage everyone to submit a paper regardless of your rank. If you do not submit a paper, it would still be fantastic if you open-source your code. We'll circulate a form to collect URLs and start to build critical mass in this area.
Best wishes,
Scott